Advances in optical security systems

W Chen, B Javidi, X Chen - Advances in Optics and Photonics, 2014‏ - opg.optica.org
Information security with optical means, such as double random phase encoding, has been
investigated by various researchers. It has been demonstrated that optical technology …

Optical image encryption based on diffractive imaging

W Chen, X Chen, CJR Sheppard - Optics letters, 2010‏ - opg.optica.org
In this Letter, we propose a method for optical image encryption based on diffractive
imaging. An optical multiple random phase mask encoding system is applied, and one of the …

Discussion and a new attack of the optical asymmetric cryptosystem based on phase-truncated Fourier transform

X Wang, Y Chen, C Dai, D Zhao - Applied optics, 2014‏ - opg.optica.org
A discussion and a cryptanalysis of the optical phase-truncated Fourier-transform-based
cryptosystem are presented in this paper. The concept of an optical asymmetric …

Fresnel domain nonlinear optical image encryption scheme based on Gerchberg–Saxton phase-retrieval algorithm

SK Rajput, NK Nishchal - Applied optics, 2014‏ - opg.optica.org
We propose a novel nonlinear image-encryption scheme based on a Gerchberg–Saxton
(GS) phase-retrieval algorithm in the Fresnel transform domain. The decryption process can …

Known-plaintext attack-based optical cryptosystem using phase-truncated Fresnel transform

SK Rajput, NK Nishchal - Applied Optics, 2013‏ - opg.optica.org
In this paper, we propose a scheme for information security under the basic double random
phase<? A3B2 show [pmg: line-break justify=" yes"/]?> encoding framework but with …

Image encryption using binary polarization states of light beam

A Shikder, NK Nishchal - Scientific Reports, 2023‏ - nature.com
Optical image/data encryption techniques are mostly based on the manipulation of spatial
distributions of light's amplitude, phase, and polarization. Information encoding with phase …

Multiple-image encryption by space multiplexing based on compressive sensing and the double-random phase-encoding technique

B Deepan, C Quan, Y Wang, CJ Tay - Applied optics, 2014‏ - opg.optica.org
In this paper, a new multiple-image encryption and decryption technique that utilizes the
compressive sensing (CS) concept along with a double-random phase encryption (DRPE) …

Phase-modulated optical system with sparse representation for information encoding and authentication

W Chen, X Chen, A Stern, B Javidi - IEEE Photonics Journal, 2013‏ - ieeexplore.ieee.org
We develop a phase-modulated optical system with sparse representation for information
encoding and authentication. The optical cryptosystem is developed with cascaded phase …

Photon-counting security tagging and verification using optically encoded QR codes

A Markman, B Javidi, M Tehranipoor - IEEE Photonics Journal, 2013‏ - ieeexplore.ieee.org
We propose an optical security method for object authentication using photon-counting
encryption implemented with phase encoded QR codes. By combining the full phase double …

Exploiting optical chaos for double images encryption with compressive sensing and double random phase encoding

X Jiang, Y **ao, Y **e, B Liu, Y Ye, T Song, J Chai… - Optics …, 2021‏ - Elsevier
Images as a common information carrier are widely disseminated and used at present,
meanwhile, image security and privacy protection are also facing severe tests. To enhance …